Abstract
DETAILED work which I have done in the Loch Lomond area suggests a definite answer to the above problem which is of some importance since it concerns one of the major geological features of the British Isles. The direction in which the principal stress acted in the production of the fault can be approximately determined from the pattern of structures in the Lower Old Red Sandstone conglomerates, and this supports the contention put forward in stratigraphical accounts (summarized by J. G. C. Anderson1) that the Highland Boundary Fault is a reverse fault of Caledonian age and not a Proto-Armorican wrench fault as envisaged by E. M. Anderson2.
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References
Anderson, J. G. C., Trans. Roy. Soc. Edin., 61, Pt. 2, 479 (1947).
Anderson, E. M., The Dynamics of Faulting (Edinburgh, 1951).
Du Toit, A. L., Trans. Geol. Soc. Edin., 8, Pt. 3, 315 (1905).
Griggs, D., and Handin, J., Geol. Soc. Amer. Mem., 79, 347 (1960).
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RAMSAY, D. The Highland Boundary Fault : Reverse or Wrench Fault?. Nature 195, 1190–1191 (1962). https://doi.org/10.1038/1951190b0
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DOI: https://doi.org/10.1038/1951190b0
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